Added fenced syntax for Markdown

docs/getting_started.rst

@@ -578,6 +578,15 @@ indenting both the identifier and code::
         :::identifier
         <code goes here>
 
+Alternatively, in Markdown you can use the fenced code blocks, wrapping
+your code in ``````` which does not require indenting::
+
+    A block of text
+    
+    ```identifier
+    <code goes here>
+    ```
+
 The specified identifier (e.g. ``python``, ``ruby``) should be one that
 appears on the `list of available lexers <http://pygments.org/docs/lexers/>`_.